The dash is removable but it’s a bit of a pain in the arse! I need to replace an LED lamp on my dash but will be doing it laying on my back with the dash lent forward, if your cables are longer than mine you may find it easier...
Southern GT Chassis #54 Build - The What Have I Done Chronicles!!
- Thread starter Shaun Sizen
- Start date
The dash is removable but it’s a bit of a pain in the arse! I need to replace an LED lamp on my dash but will be doing it laying on my back with the dash lent forward, if your cables are longer than mine you may find it easier...
Neil
Supporter
Paul, I've run into that same problem. Working on your back under the dash to fix something is not easy! When I built my car I made the instrument panel and the switch/circuit breaker panel easily removable to gain easy access to the rear of each. The instrument panel is mounted on aircraft shock mounts with screws and the switch/circuit breaker is removed by four captive thumb screws.
It really helps to have a fold-down panel for your gauges & switches.
It really helps to have a fold-down panel for your gauges & switches.
Attachments
Ed McClements
Supporter
From the manual:-
Rear fog lamps;
1. They must be operational
2. The correct number must be fitted to the vehicle (Table 1)
3. They must only emit a red light
4. The rear fog lamp(s) must only illuminate when dipped beam, main beam or front
fog lamps are lit (see alternatives in Notes 3 and 4).
5. They must be positioned correctly to meet
a) the positional requirements of Table 1
b) the angles of visibility requirements of Table 1
6. Must be fitted with an operational “tell-tale” lamp (non-flashing) visible from the
driving position
7. Either the switch or tell tale must clearly indicate that operation relates to the
Rear Fog lights (see Note 1).
8. Must not be operated by a brake control
9. Fitted so that the reflector is facing squarely to the rear
10. An optional rear fog lamp must form a matched pair with the obligatory lamp.
11. An optional rear fog lamp must only operate with the obligatory rear fog lamp
12. All rear fog lamps must display an “e” or “E” mark with a “B” or “F” (see Note 2)
You can ignore the options in Notes 3 & 4 - these have led to much confusions and people selling magic boxes of tricks which you do not need, in order to satisfy optional arrangements.
Basically, you need:-
E-Marked lamp lens
One fog lamp at rear, on the offside (see positional requirements table below)
Warning lamp (telltale) in the vehicle when fog lamp illuminated, with the lamp bearing a foglamp symbol
Clearly identified or labelled switch
If it was me, I'd take an extra feed from the third position of your off/sidelamp/headlamp switch, which normally goes to your dip/main switch. Take this extra feed to the input side of a normally-open relay, so that when your lights are on, the relay closes. From the output side of this relay you can run to the fog lamp switch. The result will then be that you can only switch on the fog lamp when the dip or main lights are on (but not when sidelamps are on not when the lights are off. I've made it sound complex, but it's really not too hard (and you don't need a magic box of tricks).
Rear fog lamps;
1. They must be operational
2. The correct number must be fitted to the vehicle (Table 1)
3. They must only emit a red light
4. The rear fog lamp(s) must only illuminate when dipped beam, main beam or front
fog lamps are lit (see alternatives in Notes 3 and 4).
5. They must be positioned correctly to meet
a) the positional requirements of Table 1
b) the angles of visibility requirements of Table 1
6. Must be fitted with an operational “tell-tale” lamp (non-flashing) visible from the
driving position
7. Either the switch or tell tale must clearly indicate that operation relates to the
Rear Fog lights (see Note 1).
8. Must not be operated by a brake control
9. Fitted so that the reflector is facing squarely to the rear
10. An optional rear fog lamp must form a matched pair with the obligatory lamp.
11. An optional rear fog lamp must only operate with the obligatory rear fog lamp
12. All rear fog lamps must display an “e” or “E” mark with a “B” or “F” (see Note 2)
You can ignore the options in Notes 3 & 4 - these have led to much confusions and people selling magic boxes of tricks which you do not need, in order to satisfy optional arrangements.
Basically, you need:-
E-Marked lamp lens
One fog lamp at rear, on the offside (see positional requirements table below)
Warning lamp (telltale) in the vehicle when fog lamp illuminated, with the lamp bearing a foglamp symbol
Clearly identified or labelled switch
If it was me, I'd take an extra feed from the third position of your off/sidelamp/headlamp switch, which normally goes to your dip/main switch. Take this extra feed to the input side of a normally-open relay, so that when your lights are on, the relay closes. From the output side of this relay you can run to the fog lamp switch. The result will then be that you can only switch on the fog lamp when the dip or main lights are on (but not when sidelamps are on not when the lights are off. I've made it sound complex, but it's really not too hard (and you don't need a magic box of tricks).
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Shaun
Supporter
Eddy thanks so much for the detailed reply, all makes sense, just seemed odd for mine to be wired to come on with full beam, in fog normally full beam is a killer and would be driven with dip only
Will swap as you say, last power job to do...Until I find the next little issue
Again thanks so much
Cheers
Will swap as you say, last power job to do...Until I find the next little issue
Again thanks so much
Cheers
Shaun
Supporter
Sometimes oh sometimes its not as much fun as it should be.....
Front brakes bled fine no leaks
Rear brakes have a tiny leak on the T union which I put in about the most inaccessible place I could, at the time there was nothing there now its cables, pipes and gear linkages, nipping it up has done no good so must be a duff flare
Oh my the next build will be soooooo much easier
Hey ho if it were easy every bugger would build one !!
Front brakes bled fine no leaks
Rear brakes have a tiny leak on the T union which I put in about the most inaccessible place I could, at the time there was nothing there now its cables, pipes and gear linkages, nipping it up has done no good so must be a duff flare
Oh my the next build will be soooooo much easier
Hey ho if it were easy every bugger would build one !!
Unless I’m misunderstanding your description I’m not sure I agree with all of that, on my IVA test we discussed and the tester certainly tested the operation of my rear fog light and ensuring it could not remain in an on state if the lights are tuned off and then on again, I passed all courtesy of the “box of magic tricks”.
The problem is that people don’t switch off the fog light switch when they turn the lights on so when the lights are turned back on the next time the fog lights will come back on and they DO check this on the test...
IMO saving £30.00 is a saving too far if it’s the difference between a pass and a fail of your IVA.
Ed McClements
Supporter
As I said, the Note 4 is optional, not mandatory, and was introduced in 2013 to allow some imported Japanese vehicles to pass IVA with a fog light that worked as described in option 4. Unfortunately this caused much confusion amongst constructors, who read it as a mandatory requirement, not helped by a few IVA examiners who read it the same way. VOSA have subsequently sent the following memo to test centres:-
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Good Morning ****
We understand that there is some confusion over Note 4 in section 28 regarding the operation of rear fog lamps, the intention of Note 4 was to allow these options but not mandate them.
The requirement for the rear fog lamps are as follows:
The rear fog lamp(s) must only illuminate when dipped beam, main beam or front fog lamps are lit,
But the other conditions listed in the Note 4 will also be accepted if manufactured / wired up that way,
The manual is currently been amended and will clarify the operation of the rear fog lamps and the accepted alternatives, we have already issued a memo to all IVA Examiners with the correct information so VOSA Station should now be applying the correct standard.
Hopefully this will resolve your concern
For all the requirements regarding IVA can be found in the Inspection Manual which is free to download from Vehicle approval - GOV.UK
many thanks
*******
*******
Approvals Policy Engineer
Approvals Scheme Management
Scheme Management and External Relations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Ed McClements
Supporter
Mentioned earlier here
https://www.gt40s.com/threads/rear-fog-light-iva.50117/post-518218
I realise that the fog light may come back on when the headlights are switched back on (if the fog light switched has inadvertently been left on) but that's the purpose of the foglight tell-tale - to alert the driver to this fact.
https://www.gt40s.com/threads/rear-fog-light-iva.50117/post-518218
IVA Rear Fog Light Rules - Page 1 - Kit Cars - PistonHeads UK
www.pistonheads.com
I realise that the fog light may come back on when the headlights are switched back on (if the fog light switched has inadvertently been left on) but that's the purpose of the foglight tell-tale - to alert the driver to this fact.
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Shaun
Supporter
Its been far too long without an update, been doing plenty, other jobs in lock down still seem to get in the way, happens when you live on a farm always things to do especially in the spring.
But finally an update so got the fire system last week, hope its never used, oddly they closed for the lock down but had to re-open as they do MOD stuff and had to do some work on some bomb disposal vehicles and I guess they thought why not do private stuff as well
Its just a dry fit for now sorting pipe routes, I have the feeds back to the engine already in.
All loom now in and has been tested will get my dash covered then fit and have it ready for the fire up
Have the water pipes to fiot they are all there just needed some correctly size T Bolt clamps, sort of prefer these to jubilee clips which I find these days are really bad quality
Not much changed on the drivers side engine bay apart from plumbing the expansion tank in
Rear is the same pretty much done there
Fuel all done not tested that was a minefield to fit in that small area but its all there, got a bit carried away with hose fittings I think its my OCD!!
Fitted a relay behind the passenger seat to control the fuel return valve form the swirl pot, found a place online that does shed loads of solenoid valves and this one was good for fuel, if is spring loaded one way and when the N/S pump runs it opens and sends fuel back to that, did not want to run that of the fuel pump supply so created a relay based system
MSD and ECU behind the seats seemed a good place, MSD all wired in now
Got the wheels that was a milestone rims may give clues to pain whenever that will be!!
But finally an update so got the fire system last week, hope its never used, oddly they closed for the lock down but had to re-open as they do MOD stuff and had to do some work on some bomb disposal vehicles and I guess they thought why not do private stuff as well
Its just a dry fit for now sorting pipe routes, I have the feeds back to the engine already in.
All loom now in and has been tested will get my dash covered then fit and have it ready for the fire up
Have the water pipes to fiot they are all there just needed some correctly size T Bolt clamps, sort of prefer these to jubilee clips which I find these days are really bad quality
Not much changed on the drivers side engine bay apart from plumbing the expansion tank in
Rear is the same pretty much done there
Fuel all done not tested that was a minefield to fit in that small area but its all there, got a bit carried away with hose fittings I think its my OCD!!
Fitted a relay behind the passenger seat to control the fuel return valve form the swirl pot, found a place online that does shed loads of solenoid valves and this one was good for fuel, if is spring loaded one way and when the N/S pump runs it opens and sends fuel back to that, did not want to run that of the fuel pump supply so created a relay based system
MSD and ECU behind the seats seemed a good place, MSD all wired in now
Got the wheels that was a milestone rims may give clues to pain whenever that will be!!
Shaun
Supporter
And final question, anyone know what adaptors are used on the Jenvey manifold for the water temp and feed to the expansion tank? I emailed Jenvey but they are on lock down
They seem to be 17.8mm across they are female threads, I need to get an adaptor to take those to a 1/2" hose tail and a water temp sensor.
Cheers
They seem to be 17.8mm across they are female threads, I need to get an adaptor to take those to a 1/2" hose tail and a water temp sensor.
Cheers
Shaun
Supporter
One more for the pot, anyone got a good setup for an oil cooler system? Not sure what the thread is on a standard 302 block, guess I need a sandwich plate or do I go for remote oil filter? Mine is already pretty tight to the ac compressor. Odd track day no more, also would you suggest a thermostat based one I have my pressure switch remotely fitted so I think a thermostat is an option in a sandwich plate
Cheers
Cheers
I’ve got a thermostatic sandwich plate fitted, works well and helps the engine get up to temp in a reasonable time on a cold day.
Can’t remember where I got it, possibly eBay but they come with different Adapters to suit most oil filter fitments.
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